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How to convert an Array of NSNumber to Array of String in order to display the value in UITableView?
cell.textlabel.text = ?
Code:
var a = [68.208983, 6.373902, 1.34085, 3.974012, 110.484001,
61.380001, 1.325202, 0.8501030000000001, 0.8501030000000001,
0.8501030000000001, 3.647296, 1.28503]
963
Overview. NSNumber is a subclass of NSValue that offers a value as any C scalar (numeric) type. It defines a set of methods specifically for setting and accessing the value as a signed or unsigned char , short int , int , long int , long long int , float , or double or as a BOOL .
var stringToInt: Int = Int (string)! This is a swift program where we are accepting a variable value as an integer data type and converting that integer variable value to a float data type and displaying the value and type using print statements.
Convert Swift String to DoubleUse Double , Float , CGFloat to convert floating-point values (real numbers). let lessPrecisePI = Float("3.14") let morePrecisePI = Double("3.1415926536") let width = CGFloat(Double("200.0")!)
Converting string to double To convert a string to a double, we can use the built-in Double() initializer syntax in Swift. The Double() initializer takes the string as an input and returns the double instance.
just add
.stringValue
to your NSNumber variable
93
From what you posted is an array of Double if you don't annotate them explicitly. If the array you posted is as it is, then you need this:
let arrayOfDoubles = [68.208983, 6.373902, 1.34085, 3.974012, 110.484001, 61.380001, 1.325202, 0.8501030000000001, 0.8501030000000001, 0.8501030000000001, 3.647296, 1.28503]
let stringArrayOfDoubles = arrayOfDoubles.map { String($0) }
Or, if you explicitly annotate the type as [NSNumber] then you will need this:
let arrayOfNumbers: [NSNumber] = [68.208983, 6.373902, 1.34085, 3.974012, 110.484001, 61.380001, 1.325202, 0.8501030000000001, 0.8501030000000001, 0.8501030000000001, 3.647296, 1.28503]
let stringArrayOfNumbers = arrayOfNumbers.map { $0.stringValue }
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